/Engine/Source/Runtime/Engine/Public/Animation/AnimInstanceProxy.h
void GetStateMachineIndexAndDescription ( [FName](API\Runtime\Core\UObject\FName) InMachineName, int32 & OutMachineIndex, const [FBakedAnimationStateMachine](API\Runtime\Engine\Animation\FBakedAnimationStateMachine) ** OutMachineDescription ) const